of the boston attacks now with more detailsabouttamerlantsarnaev.>> he was killed in a shootout with police early last friday morning. since then information about his life has been trickling out. abc's brian ross has the latest. >> reporter: federal authorities were searching behind a cambridge drugstore in an area where the brothers' father used to repair cars, looking for possible explosives or where the bombs were made. there is no evidence of a continuing threat. the fbi wants to question tamerlan's wife, seen over the weekend leaving the family apartment. a rhode island native, she converted to islam and changed her name from catherine to karina. because she lived in the same cambridge apartment where authorities believe the two brothers hatched their plot, she could provide clues about whether others were involved. her family issued a statement saying, we know that we never really knew tamerlan tsarnaev. and now there is a possible link to a murder two years ago. local prosecutors said they're investigating whether tamerlan was involved in the brutal murder of three young men, one of